python 打印输出字典的几种方法

my_dict = {'a': 1, 'b': 2, 'c': 3}
print(my_dict)  # {'a': 1, 'b': 2, 'c': 3}

my_dict = {'a': 1, 'b': 2, 'c': 3}
for key, value in my_dict.items():
    print(key, value)
# a 1
# b 2
# c 3

import json

my_dict = {'a': 1, 'b': 2, 'c': 3}
print(json.dumps(my_dict, indent=4))  # 格式化后的JSON字符串
# {
#     "a": 1,
#     "b": 2,
#     "c": 3
# }